Handle empty current logout state

src/state/session/__tests__/session-test.ts

@@ -1902,13 +1902,37 @@ describe('session', () => {
       const rebased = rebasePersistedSession(
         snapshot([fresh], 'alice-did'),
         snapshot([loggedOut]),
-        {type: 'logged-out-current-account'},
+        {type: 'logged-out-current-account', accountDid: 'alice-did'},
       )
 
       expect(rebased.accounts).toEqual([loggedOut])
       expect(rebased.currentAccount).toBeUndefined()
     })
 
+    it('keeps latest tokens when no current account is available to log out', () => {
+      const stale = makeAccount('https://alice.com', {
+        active: true,
+        did: 'alice-did',
+        handle: 'alice.test',
+        accessJwt: 'alice-access-jwt-1',
+        refreshJwt: 'alice-refresh-jwt-1',
+      })
+      const fresh = {
+        ...stale,
+        accessJwt: 'alice-access-jwt-2',
+        refreshJwt: 'alice-refresh-jwt-2',
+      }
+
+      const rebased = rebasePersistedSession(
+        snapshot([fresh], 'alice-did'),
+        snapshot([stale]),
+        {type: 'logged-out-current-account'},
+      )
+
+      expect(rebased.accounts).toEqual([fresh])
+      expect(rebased.currentAccount).toBeUndefined()
+    })
+
     it('clears only the explicitly logged-out account', () => {
       const alice = makeAccount('https://alice.com', {
         active: true,

src/state/session/reducer.ts

@@ -164,9 +164,7 @@ function getTokenWriteMode(
 ): 'replace' | 'clear' | 'keep-latest' {
   switch (action.type) {
     case 'logged-out-current-account':
-      return action.accountDid === undefined || action.accountDid === did
-        ? 'clear'
-        : 'keep-latest'
+      return action.accountDid === did ? 'clear' : 'keep-latest'
     case 'logged-out-every-account':
       return 'clear'
     case 'received-session-event':
@@ -175,8 +173,8 @@ function getTokenWriteMode(
         return latestAccount.refreshJwt ? 'replace' : 'keep-latest'
       }
       if (action.sessionEvent === 'expired') {
-        return latestAccount.refreshJwt &&
-          latestAccount.refreshJwt !== action.expiredRefreshJwt
+        if (!action.expiredRefreshJwt) return 'clear'
+        return latestAccount.refreshJwt !== action.expiredRefreshJwt
           ? 'keep-latest'
           : 'clear'
       }